#include<iostream>
#include"Tool.hpp"
using namespace std;
int main(){
	int a,b;
	cin>>a>>b;
	Tool p;

	cout<<dynamic_cast<Base&>(p).Msg()<<endl;
	cout<<dynamic_cast<Base&>(p).Do(a,b)<<endl;
	
	cout<<"this is a new line"<<endl;
}
